//=================================================================================================
/*!
//  \file src/main/MemorySweep.cpp
//  \brief Source file for the Blaze memory sweep
//
//  Copyright (C) 2013 Klaus Iglberger - All Rights Reserved
//
//  This file is part of the Blaze library. You can redistribute it and/or modify it under
//  the terms of the New (Revised) BSD License. Redistribution and use in source and binary
//  forms, with or without modification, are permitted provided that the following conditions
//  are met:
//
//  1. Redistributions of source code must retain the above copyright notice, this list of
//     conditions and the following disclaimer.
//  2. Redistributions in binary form must reproduce the above copyright notice, this list
//     of conditions and the following disclaimer in the documentation and/or other materials
//     provided with the distribution.
//  3. Neither the names of the Blaze development group nor the names of its contributors
//     may be used to endorse or promote products derived from this software without specific
//     prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
//  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
//  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
//  SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
//  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
//  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
//  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
//  DAMAGE.
*/
//=================================================================================================


//*************************************************************************************************
// Includes
//*************************************************************************************************

#include <cstddef>
#include <cstdlib>
#include <iostream>


//=================================================================================================
//
//  MAIN FUNCTION
//
//=================================================================================================

//*************************************************************************************************
/*!\brief The main function for the Blaze memory sweep.
//
// \param argc Number of command line arguments.
// \param argv Array of command line arguments.
// \return Success code for the execution.
*/
int main( int argc, char** argv )
{
   if( argc != 2 ) {
      std::cerr << " Invalid use of program 'MemorySweep'!\n"
                << "   Use: ./memorysweep <number_of_megabytes>\n" << std::endl;
      return EXIT_FAILURE;
   }

   const std::size_t M( static_cast<std::size_t>( atoi( argv[1] ) ) );
   const std::size_t N( M * 1000000UL / sizeof(double) );

   double* v = new double[N];

   std::cout << "\n Freeing " << M << " MByte of main memory..." << std::endl;

   for( std::size_t i=0UL; i<N; ++i ) {
      if( ( i % (N/10UL) ) == 0UL )
         std::cout << "\r   Initializing the memory: " << (100.0*i)/N << "%  " << std::flush;
      v[i] = 0.0;
   }

   std::cout << "\r   Initializing the memory: 100%\n" << std::endl;

   delete [] v;
}
//*************************************************************************************************
